Acer metcalfii
| Family |
| Sapindaceae (Aceraceae) |
| Genus |
| Acer |
| Species |
| metcalfii |
| Category |
| Woody |
| Type |
| Tree (deciduous) |
| USDA Hardiness Zone |
| 6 |
| Canadian Hardiness Zone |
| 5 - 6a |
| RHS Hardiness Zone |
| H7 - H6 |
| Temperature (°C) |
| (-21) - (-18) |
| Temperature (°F) |
| (-5) - 0 |
| Height |
| 10 m |
| General Description |
| This species has been placed on the IUCN Red List as globally threatened. |
| Cultivation |
| Well drained soil in full sun to partial shade. |
| Habitat |
| Stream sides in forests at an altitude of 800-1,500 m. |
| Bark/Stem Description |
| Smooth bark with thin branchlets. |
| Leaf Description |
| Dark green and thick, 9-11 lateral veins on either side of the mid vein. A subcordate or rounded base with 3 lobes, obtuse teeth along the margin, 10-14 x 7-11 cm. |
| Flower Description |
| Unknown. |
| Fruit Description |
| Glabrous and thin, yellowish-brown, produced in September. Winged nutles, 2.2 x 8 mm. |
| Notable Specimens |
| Westonbirt, The National Arboretum, Tetbury, Gloucestershire, England. |